﻿using System;
interface InterfaceA
{
    void PrintCapitalLetter();
}

interface InterfaceB
{
    void PrintLowerCaseLetter();
}
class Print : InterfaceA, InterfaceB
{
    public void PrintCapitalLetter()
    {
        for (char c = 'A'; c <= 'Z'; c++)
        {
            Console.Write(c + " ");
        }
        Console.WriteLine();
    }

    public void PrintLowerCaseLetter()
    {
        for (char c = 'a'; c <= 'z'; c++)
        {
            Console.Write(c + " ");
        }
        Console.WriteLine();
    }
}

class Program
{
    static void Main(string[] args)
    {
        InterfaceA a = new Print();
        a.PrintCapitalLetter();
        InterfaceB b = new Print();
        b.PrintLowerCaseLetter();
    }
}
